51542001234 has 12 divisors (see below), whose sum is σ = 111674336046. Its totient is φ = 17180667072.

The previous prime is 51542001227. The next prime is 51542001241. The reversal of 51542001234 is 43210024515.

51542001234 is a `hidden beast` number, since 5 + 1 + 5 + 420 + 0 + 1 + 234 = 666.

It is an interprime number because it is at equal distance from previous prime (51542001227) and next prime (51542001241).

It can be written as a sum of positive squares in only one way, i.e., 41921334009 + 9620667225 = 204747^2 + 98085^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51542001198 and 51542001207.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1431722239 + ... + 1431722274.

Almost surely, 2^51542001234 is an apocalyptic number.

51542001234 is an abundant number, since it is smaller than the sum of its proper divisors (60132334812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51542001234 is a wasteful number, since it uses less digits than its factorization.

51542001234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2863444521 (or 2863444518 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 51542001234 its reverse (43210024515), we get a palindrome (94752025749).

The spelling of 51542001234 in words is "fifty-one billion, five hundred forty-two million, one thousand, two hundred thirty-four".